LCM of 765, 324, 649, 561
Reviewed By : Rajashekhar Valipishetty
Last Updated at : Mar 29,2023
Find the LCM of 765, 324, 649, 561 with the LCM of Two or More Numbers Calculator. Here we are teaching you two different methods through which you can calculate the LCM of 765, 324, 649, 561. So, keep reading to learn more.
Given numbers are 765,324,649,561
The least common multiple of numbers can be find using the prime factorization method or LCM formula.
The LCM of 765,324,649,561 is 17873460.
Find LCM of 765,324,649,561 with Prime Factorization
| 3 | 765, 324, 649, 561 |
| 3 | 255, 108, 649, 187 |
| 11 | 85, 36, 649, 187 |
| 17 | 85, 36, 59, 17 |
| 5, 36, 59, 1 |
Multiply the prime numbers at the bottom and the left side.
3 x 3 x 11 x 17 x 5 x 36 x 59 x 1 = 17873460
Therefore, the lowest common multiple of 765,324,649,561 is 17873460.
LCM formula is LCM(a1, a2, an) = (a1 x a2 x an)/{GCF(a1 x a2 x an) x common factors}
Firstly, we have to find the product of all the numbers.
765 x 324 x 649 x 561 = 90243099540
Then, let us find the GCF of these five numbers. To do so, we have to list down the factors for each number and choose the highest factor that is in all of the lists.
765 : 1, 3, 5, 9, 15, 17, 45, 51, 85, 153, 255, 765
324 : 1, 2, 3, 4, 6, 9, 12, 18, 27, 36, 54, 81, 108, 162, 324
649 : 1, 11, 59, 649
561 : 1, 3, 11, 17, 33, 51, 187, 561
1 is the greatest number that appears in all the lists. Therefore, we can determine that the GCF of 765,324,649,561, is 1.
Now, the common factors can be found like this.
765:3x 3x 5x 17
324:2x 2x 3x 3x 3x 3
649:11x 59
561:3x 11x 17
From this, we can see that the common factors because they appear for more than two numbers. So, just multiply them all together.
3x 3x 3x 11x 17 = 5049
Therefore, the value for common factors is 5049.
Now that we have all the elements of the formula, we can plug them in to calculate the LCM.
LCM(a1, a2, an) = (a1 x a2 x an)/{GCF(a1 x a2 x an) x common factors}
LCM = 90243099540/(1x5049)
LCM = 90243099540/5049
LCM = 17873460
Thus, we can understand that the LCM of 765,324,649,561 is 17873460.
LCM of two or more Numbers Calculation Examples
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FAQs on LCM of 765, 324, 649, 561
1. What is the LCM of 765, 324, 649, 561?
Answer: LCM of 765, 324, 649, 561 is 17873460.
2. How to calculate the LCM of 765, 324, 649, 561?
The LCM can be found using two methods. You can either use the LCM formula or the prime factorization method to calculate the LCM of 765, 324, 649, 561.
3. What is the LCM formula?
The LCM formula is LCM(a1, a2, an) = (a1 x a2 x an)/{GCF(a1 x a2 x an) x common factors}.